jQuery(document).ready(function(){
	jQuery.threestateradiobutton = {
	
		last:undefined
		,__callback : function(a){
			if(jQuery.threestateradiobutton.last != undefined){
				jQuery.threestateradiobutton.last.checked = false;
				jQuery.threestateradiobutton.last = undefined;
			}		
		}		
	};

	jQuery('input[@type=radio]').mousedown(function(){
		if(this.checked == true){
			jQuery.threestateradiobutton.last = this;
			setTimeout(jQuery.threestateradiobutton.__callback, 120);
		}
	});
	


});